Adjustable ink fountain of a rotary press



Sept. 26, 1939. BOYD 2,173,874

ADJUSTABLE IflK FOUNTAIN OF A ROTARY PRESS Original Filed June 28, 193B 5 Sheets-Sheet 1 g BY nzu kzowi m y nzu um Sept. 26, 1939. D. BOYD ADJUSTABLE INK FOUNTAIN OF A ROTARY PRESS Original Filed June 2a, 1938 5 Sheets'Sheet 2 ENTOK, a

ATTORNEY.

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ADJUSTABLE I NK FOUNTAIN OF A ROTARY PRESS Original Filed June 28, 1938 5 Sheets-Sheet 3 I W I I wan? m/ 19W ATTORNEY.

Sept. 26, 1939. D B YD 2,173,874

ADJUSTABLE INK FOUNTAIN OF A ROTARY PRESS Original Filed June 28, 1938 5 Sheets-Sheet 4 a/vza/ ATTORNEY.

Sept. 26, 1939. D. L. BOYD ADJUSTABLE INK FOUNTAIN OF A ROTARY PRESS 5 Sheets-Sheet 5 Original Filed June 28, 1938 FIG.6

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Patented Sept. 26, 1939 v UNITED STATES ADJUSTABLE INK FOUNTAIN OF A ROTARY PRESS Donald L. Boyd, Huntington, w. Va., assignor to Carb-O-Spot Corporation, Athens, Ohio Original application June 28, "1938, Serial No.

Divided and this application November so, 1938, Serial No. 243,087

a claims. (01. 101-351) My invention relates to the type of press described in my copending application, Serial No. 216,192, filed June 28, 1938, of which this application is a division, and further relatesto printing presses in which in practice it may be founddesirable to lower the ink fountain. 1

My invention has for its object to provide a simple and inexpensive means whereby this may, be'done without interfering with the operation of the press.

My means of accomplishing the foregoing object may be more fully comprehended'by having reference to the accompanying drawings, which are hereunto annexed and are a part of this specification, in which:

Fig. 1 is a side elevation of my improved press from the gear side, with the oil pump, pipe and pipe connections left out for clarity;

Fig. 2 is a side elevation of my improved press from the feeder side, with the oil pump, pipe and pipe connections left out for clarity;

Fig. 3 is a rear view of the press, with the oil pump, pipe and pipe connections left out for clarity;

Fig. 4 is a'fragmentary side elevation showing the drive for the form and distributor rollers, and the means for raising andlowering the ink fountain;

Fig. 5 is a fragmentary side elevation of the ink fountain in lowered position;

Fig. 6 is a plan view of the ink fountain; and

Fig. 7 is a transverse cross section of the ink fountain showing the relative position of ink fountain roller, formroller and plate cylinder.

Similar reference numerals refer to similar parts throughout the entire specification.

For illustrativeipurposes, I have shown a rotary press equipped with my improvement but it will be obvious to persons skilled in the art, from the hereinafter contained description, that my invention is not restricted to that particular type of press but can be applied to any printing press in which it is desired to lower the ink fountain. As shown in the drawings, the press consists of two side frames I and 2 in which are mounted shafts 3 and 4 adapted to carry an impression cylinder 5 and a plate or printing cylinder 6. The ink fountain l ismounted adjacent the plate cylinder 6 which cylinder is contacted by a form or distributor roller 8. The formroller 8 in turn is contacted by an ink fountain roller 9 which is mounted partially in immersed position in the ink fountain l.

The ink fountain l is mounted upon support bars III which are located adjacent et ah end of the ink fountain I. These bars ID are mounted on shaft II and are supported by links l2. The ends 1 l3 and ll of the links I2 are pivotally secured to the support bars 10. Their other ends 13a and a are pivotally secured to one end of a lifting cam 15. This lifting'cam I5 is fixed upon a-shaft I6. Its opposite end I! is engaged by a lever l8, one end IQ of which forms a detent 20 which engages the end 11 of the lifting cam IS. The lever I8 is fixed to shaft 2| and is provided for the purpose of locking the lifting, cam when the ink fountain l is in raised position.

A suitable treadle- 22 is formed on one end of the lever l8 or it may be secured to shaft 2| for released from cam 15 and by lowering handle 23 movement is imparted to shaft 16 turning the cam 15 downwardly and carrying with it the links 12 and with them the .support bars l0 and in turn the ink fountain 1. Obviously, movement in the opposite direction will restore the parts to their normal operating position.

Upon reference to Fig; 4 of the drawings, it will be noted that a plurality of tubes have been provided to interconnect the form roller .8, the ink fountain roller 9 and the jacket of the ink fountain 1. These tubular connections permit the circulation of fluid throughthe rollers and ink fountain jacket to maintain the parts at the temperatures necessary to promote efiicient oper-.

ation of the. press. The circulation of the fluid 'order to permit adjustment between the rollers and the ink fountain, the tubes and GI have been provided with flexible connections or expansion joints 63 and 64, all of which has been "described" in my copending application to which reference already has been made.

Having described my invention, what I regard v as new and desire to secure by Letters Patent, is:

1. In a rotary press, having a jacketed fountain v adapted to contain a supply of ink, a fountain roller normally contacting said ink, a second roller fed by said fountain roller; 9. flexible tubular connection between one of said rollers and the jacket of .said fountain for the circulation of fluid, and means to drop the ink fountain with respect to said rollers.

2. In a rotary press, having a jacketed ink fountain, an ink fountain roller, a roller intermediate said fountain and the material to be printed; a tubular connection containing an expansion joint between one of said rollers and the Jacket of said fountain for the circulation of fluid, and means to lower said fountain with respect to said rollers.

3. In a rotary press, having a jacketed ink fountain, an ink fountain roller, a form roller contacting said ink fountain roller; a flexible fluid connection between one of said rollers and the jacket of said fountain, means to support said ink fountain in elevated position, said means comprising pivoted support bars, a cam, links which connect one end of said cam to said support bars, and actuating means to shiftv the position of said cam to raise or lower the support bars and in 10 turn the ink fountain.

DONALD L. BOYD. 

